Deals 50/80/110/140/170 (+0.8*AP) magic damage to enemies in the area. Rengar's Armor and Magic Resist are increased by 10/15/20/25/30 for 4 seconds. The bonus Armor and Magic Resist is increased by 50% for each enemy Champion or large Monster hit. Ferocity effect: Deals 40-250 (+0.8*AP) magic damage to enemies in the area, grants the defenses from the normal ability, and restores between 12-80 and 75-500 Health based on missing Health (healing and damage values scale with Rengar's level).

Rengar stealths himself for 7 seconds after a 1 second (delayed to 3 seconds if taking damage) delay and reveals enemy Champions within 2000/3000/4000 range. While stealthed, Rengar gains 15% Movement Speed when moving toward enemy champions and his next attack will cause him to leap. After breaking stealth, Rengar gains 25/35/45% Movement Speed and generates 5 Ferocity over 5 seconds.